Seismic and wind resistance of natural pozzolan-based engineered cementitious composites: material characterization and numerical analysis

IF 3.9 3区工程技术 Q2 CONSTRUCTION & BUILDING TECHNOLOGY

Materials and Structures Pub Date : 2025-08-21 DOI:10.1617/s11527-025-02744-4

Diego Aparicio, Matias Leon-Miquel, Junyi Duan, Juan Silva-Retamal, Qian Zhang, Chengcheng Tao, Qingxu Jin, Alvaro Paul

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Abstract

This study numerically evaluates the seismic and wind resistance of a building composed of natural pozzolan-based engineered cementitious composite (NP-ECC), using finite element analysis. To support the numerical analysis, a comprehensive material characterization analyzes the hydration, mechanical properties, and cracking pattern of samples cured over varying periods. Matrix fracture toughness, fiber bridging strength, and complementary energy continuously increased over time, supporting the material's sustained ductile behavior. These material properties were incorporated into the numerical model. To assess the resilience to natural hazards, the structural behavior of a three-layer building made of NP-ECC was simulated and compared with conventional reinforced-concrete building under wind and seismic loading conditions. Results indicated that the NP-ECC structure exhibited superior strength development, tensile ductility, and earthquake resistance compared to traditional reinforced concrete. The findings from this study showed the potential of the NP-ECC materials to improve the hazard mitigation performance under seismic and wind loading.

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天然火山灰基工程胶凝复合材料的抗震和抗风性能：材料特性和数值分析

本研究采用有限元分析方法，对天然火山灰基工程胶凝复合材料（NP-ECC）建筑的抗震和抗风性能进行了数值评估。为了支持数值分析，全面的材料表征分析了水化，机械性能和不同时期固化样品的开裂模式。随着时间的推移，基体断裂韧性、纤维桥接强度和互补能量不断增加，从而支持材料的持续延展性。这些材料特性被纳入数值模型。为了评估其对自然灾害的抵御能力，模拟了一栋三层NP-ECC建筑的结构行为，并将其与传统钢筋混凝土建筑在风荷载和地震荷载条件下的结构行为进行了比较。结果表明，与传统钢筋混凝土相比，NP-ECC结构具有优越的强度发展、拉伸延性和抗震性能。这项研究的结果表明，NP-ECC材料在地震和风荷载下具有改善减灾性能的潜力。

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来源期刊

Materials and Structures 工程技术-材料科学：综合

CiteScore

6.40

自引率

7.90%

发文量

222

审稿时长

5.9 months

期刊介绍： Materials and Structures, the flagship publication of the International Union of Laboratories and Experts in Construction Materials, Systems and Structures (RILEM), provides a unique international and interdisciplinary forum for new research findings on the performance of construction materials. A leader in cutting-edge research, the journal is dedicated to the publication of high quality papers examining the fundamental properties of building materials, their characterization and processing techniques, modeling, standardization of test methods, and the application of research results in building and civil engineering. Materials and Structures also publishes comprehensive reports prepared by the RILEM’s technical committees.